Method for detecting field application strength of sealant for photovoltaic bracket

Abstract

The invention provides a method for detecting the field application strength of a sealant for a photovoltaic bracket. Comprising the following steps that an open roof with the overall roof quality meeting the conventional photovoltaic installation requirement is selected, and the roof is divided into six areas A, B, C, D, E and F; except the area E, other areas are subjected to ash removal treatment, and meanwhile, the area B is watered; purchasing a base, and equally dividing the base into six areas; polishing the base in other areas except the area C; two small round stickers which are arranged at an interval and have the thickness of 2mm are adhered to the bottom of the base in the area D, and two small round stickers which are arranged at an interval and have the thickness of 4mm are adhered to the bottoms of the bases in other areas; according to the thickness of the small round stickers, sealant is evenly smeared at the bottoms of all the bases, and after smearing is completed, the bases are bonded to the roof of the area where the bases belong; and after five complete days and ten bending days, related data are recorded, and the overall condition when the base is damaged is photographed and recorded.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic panel installation, specifically a method for testing the strength of sealant used in photovoltaic panel brackets. Background Technology

[0002] Currently, most rooftop distributed photovoltaic support bases on the market are fixed using concrete piers or expansion bolts. These fixing methods have problems such as high construction difficulty, long construction period, significant material waste, and poor environmental adaptability.

[0003] As the global energy structure shifts towards cleaner and lower-carbon energy, photovoltaic (PV) power generation technology has become an important component of the renewable energy sector. As the core supporting structure of a PV power plant, the stability of its foundation directly affects the plant's lifespan and power generation efficiency.

[0004] In recent years, sealant fixing technology has gradually become a new direction in photovoltaic support foundation construction due to its advantages such as rapid curing, strong environmental friendliness, and adaptability to complex terrain. However, existing sealant application techniques lack precision in controlling the amount of sealant applied, leading to problems such as sealant waste or insufficient curing strength. Therefore, there is an urgent need for relevant control measures to optimize the construction process. Summary of the Invention

[0005] In view of the defects in the existing construction of photovoltaic bracket sealant foundation, the technical problem to be solved by the present invention is to provide a method for testing the strength of sealant used for photovoltaic brackets.

[0006] To achieve the above objectives, according to one aspect of the present invention, the invention is achieved through the following technical measures: a method for testing the on-site application strength of sealant for photovoltaic brackets, comprising the following steps: S1: Select a spacious roof with an overall roof quality that meets the requirements for conventional photovoltaic installation, and divide the roof into six areas: A, B, C, D, E, and F. S2: Except for area E, all other areas are cleaned of dust, and area B is watered. S3: Purchase a certain number of bases and divide these bases into six groups, placing them in the six areas; S4: Use a polishing machine to polish the base in areas other than C to remove the anti-rust layer on the base; S5: Place two small round stickers, spaced apart and 2mm thick, on the bottom of the base in area D; place two small round stickers, spaced apart and 4mm thick, on the bottom of the base in other areas. S6: Apply sealant evenly to the bottom of all bases according to the thickness of the small round stickers. After application, stick the bases to the roof of the corresponding area. S7: After 5 full days, inspect and record the bonding condition of the base in the six areas, and perform a pull-out test on the base in area F using an anchor pull-out tester. During the pull-out test, the anchor pull-out tester was applied slowly, and the data before the sudden drop on the meter was taken as the reference. Record the relevant data and take photos to record the overall situation when the base fails; S8: After 10 full days, check and record the bonding status of the remaining 5 base areas, and perform pull-out tests on the remaining bases using an anchor pull-out tester. During the pull-out test, the anchor pull-out tester should be applied slowly, and the data before the sudden drop on the meter should be used as the reference. Record the relevant data and take photos to record the overall situation of the base failure. S9: Organize relevant data and information, and summarize the factors that may affect the strength of the sealant and the degree of their impact.

[0007] Furthermore, the six regions in S1 need to be independent of each other.

[0008] Furthermore, in S5, the 4mm thick small round sticker is formed by fixing two 2mm small round stickers together.

[0009] Furthermore, in S5, two small round stickers with a thickness of 3mm are affixed to the bottom of the base in area D, and two small round stickers with a thickness of 5mm are affixed to the bottom of the base in other areas.

[0010] Furthermore, the detection method also includes a step of preheating the adhesive, which is completed before S6.

[0011] Furthermore, when preheating the adhesive, the unopened adhesive is soaked in warm water at 40-50°C until the outer packaging of the adhesive can be indented when gently pressed with a finger.

[0012] Compared with existing technologies, the advantages of this method for testing the on-site application strength of sealant used in photovoltaic brackets are: while improving the ease of installation and reducing installation costs, it also ensures safety and reduces usage risks. Attached Figure Description

[0013] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with their description, serve to explain the principles of the disclosure. These drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification. In the drawings: Figure 1 The image shows the results of the field application strength test of the sealant for photovoltaic brackets described in this invention. Detailed Implementation

[0014] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., as in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0015] Example 1 This embodiment provides a method for testing the field application strength of sealant used in photovoltaic brackets, including the following steps: S1: Select a spacious roof with an overall roof quality that meets the requirements for conventional photovoltaic installation, and divide the roof into six areas: A, B, C, D, E, and F. S2: Except for area E, all other areas are cleaned of dust, and area B is watered. S3: Purchase a certain number of bases and divide these bases into six groups, placing them in the six areas; S4: Use a polishing machine to polish the base in areas other than C to remove the anti-rust layer on the base; S5: Place two small round stickers, spaced apart and 2mm thick, on the bottom of the base in area D; place two small round stickers, spaced apart and 4mm thick, on the bottom of the base in other areas. S6: Apply sealant evenly to the bottom of all bases according to the thickness of the small round stickers. After application, stick the bases to the roof of the corresponding area. S7: After 5 full days, inspect and record the bonding condition of the base in the six areas, and perform a pull-out test on the base in area F using an anchor pull-out tester. During the pull-out test, the anchor pull-out tester was applied slowly, and the data before the sudden drop on the meter was taken as the reference. Record the relevant data and take photos to record the overall situation when the base fails; S8: After 10 full days, check and record the bonding status of the remaining 5 base areas, and perform pull-out tests on the remaining bases using an anchor pull-out tester. During the pull-out test, the anchor pull-out tester should be applied slowly, and the data before the sudden drop on the meter should be used as the reference. Record the relevant data and take photos to record the overall situation of the base failure. S9: Organize relevant data and information, and summarize the factors that may affect the strength of the sealant and the degree of their impact.

[0016] In the above steps, the six areas in S1 need to be independent of each other. The small round sticker with a thickness of 4mm in S5 can be fixed by two small round stickers with a thickness of 2mm. Alternatively, in S5, two small round stickers with a thickness of 3mm and spaced apart are attached to the bottom of the base in area D, and two small round stickers with a thickness of 5mm and spaced apart are attached to the bottom of the base in other areas.

[0017] In the above steps, the glue needs to be preheated in order to facilitate extrusion. The preheating step is completed before S6. During preheating, the unopened glue is immersed in warm water at 40-50℃ until the glue packaging can be indented when gently pressed with a finger.

[0018] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A method for testing the field application strength of sealant used in photovoltaic brackets, comprising the following steps: S1: Select a spacious roof with an overall roof quality that meets the requirements for conventional photovoltaic installation, and divide the roof into six areas: A, B, C, D, E, and F. S2: Except for area E, all other areas are cleaned of dust, and area B is watered. S3: Purchase a certain number of bases and divide these bases into six groups, placing them in the six areas; S4: Use a polishing machine to polish the base in areas other than C to remove the anti-rust layer on the base; S5: Place two small round stickers, spaced apart and 2mm thick, on the bottom of the base in area D; place two small round stickers, spaced apart and 4mm thick, on the bottom of the base in other areas. S6: Apply sealant evenly to the bottom of all bases according to the thickness of the small round stickers. After application, stick the bases to the roof of the corresponding area. S7: After 5 full days, inspect and record the bonding condition of the base in the six areas, and perform a pull-out test on the base in area F using an anchor pull-out tester. During the pull-out test, the anchor pull-out tester was applied slowly, and the data before the sudden drop on the meter was taken as the reference. Record the relevant data and take photos to record the overall situation when the base fails; S8: After 10 full days, check and record the bonding status of the remaining 5 base areas, and perform pull-out tests on the remaining bases using an anchor pull-out tester. During the pull-out test, the anchor pull-out tester should be applied slowly, and the data before the sudden drop on the meter should be used as the reference. Record the relevant data and take photos to record the overall situation of the base failure. S9: Organize relevant data and information, and summarize the factors that may affect the strength of the sealant and the degree of their impact.

2. The method for testing the field application strength of sealant for photovoltaic brackets according to claim 1, characterized in that: The six regions in S1 need to be independent of each other.

3. The method for testing the on-site application strength of sealant for photovoltaic brackets according to claim 1, characterized in that: The 4mm thick small round sticker in S5 is formed by fixing two 2mm small round stickers together.

4. The method for testing the field application strength of sealant for photovoltaic brackets according to claim 1, characterized in that: In S5, two small round stickers with a thickness of 3mm and spaced apart are affixed to the bottom of the base in area D, and two small round stickers with a thickness of 5mm and spaced apart are affixed to the bottom of the base in other areas.

5. A method for testing the on-site application strength of sealant for photovoltaic brackets according to any one of claims 1-3, characterized in that: The detection method also includes a step of preheating the adhesive, which is completed before S6.

6. The method for testing the field application strength of sealant for photovoltaic brackets according to claim 5, characterized in that: When preheating the adhesive, immerse the unopened adhesive in warm water at 40-50℃ until the outer packaging of the adhesive can be indented when gently pressed with a finger.

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